NUK® Fashion Pacifiers feature gender-specific Day and Night designs and a glow-in-the-dark puller. Like all NUK® pacifiers, the Fashion line features the original NUK® orthodontic nipple. Invented over 60 years ago by pediatric dentists and doctors, the NUK® pacifier mimics the natural shape of mom's nipple while breastfeeding. This makes for an easy transition from breast to pacifier and back. The asymmetrical nipple naturally fits baby's palate and features a scoop bottom allowing for maximum tongue movement and proper teeth alignment. This, coupled with less pressure on baby's palate, creates a pacifier that best promotes healthy oral development. The NUK® heart-shaped shield fits perfectly under baby's nose for easier breathing and prevents irritation. Our gender-specific Day and Night designs feature a glow-in-the-dark puller that allows parents and babies to easily find the pacifier at night if it falls out of the child's mouth. To activate the glow-in-the-dark feature, expose the pacifier to light two minutes before bedtime until the puller glows green. Available in 0-6 months and 6-18 months sizes.